Home / 84,920.76-117,080.46-54,651.96

Finding the Fourth Proportional to 84,920.76, 117,080.46 and 54,651.96

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Solution

The fourth proportional to 84,920.76, 117,080.46 and 54,651.96 is: 75,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,920.76 : 117,080.46 = 54,651.96 : x
  2. Step 2: Convert to fraction form
    84,920.76/117,080.46 = 54,651.96/x
  3. Step 3: Cross multiply
    84,920.76x = 117,080.46 × 54,651.96
  4. Step 4: Simplify right side
    84,920.76x = 6,398,676,616.70
  5. Step 5: Solve for x
    x = 6,398,676,616.70/84,920.76
  6. Step 6: Final answer
    x = 75,348.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.